Might be worth reading Sangakkaras own thoughts on giving up the gloves.
"I didn't like it when they stopped me keeping," Sangakkara said. "But the selection committee spoke to me and said: 'What we're trying to do is improve your batting and to get you scoring more runs for the team. We are asking you to do this. It will be better for the team and better for you.' At the time, I thought: 'That's not true. I can do both.' But when I look back on it now, that was the best thing to happen to me. It's great that they took that decision for me, without letting me take it. That has hugely influenced the runs that I scored, and the centuries I made."
Being relieved of keeping was the best thing - Sangakkara
Kumar Sangakkara, who is set to retire after the second Test against India, believed that being relieved of the gloves in Tests contributed to a boom in his batting
www.espncricinfo.com
"I didn't like it when they stopped me keeping," Sangakkara said. "But the selection committee spoke to me and said: 'What we're trying to do is improve your batting and to get you scoring more runs for the team. We are asking you to do this. It will be better for the team and better for you.' At the time, I thought: 'That's not true. I can do both.' But when I look back on it now, that was the best thing to happen to me. It's great that they took that decision for me, without letting me take it. That has hugely influenced the runs that I scored, and the centuries I made."